Gregor > The link you are looking for is
http://www.silkyvenom.com/forums/showthread.php?t=2365, the Work In Progress Guild List hosted by Silky Venom (But it's also mirrored over on the Official Vanguard Forums as well).
There's a surprising number of Guilds being set up so far (of which mine is one of them).
Edit > Ooops, forgot there was one over
here too. Sorry, my bad.